Stealth is honestly a completely degenerate card (in my opinion, I just think its so silly that Konami would ban Super-Polymerization just to make this card in the next set, and its arguably better than Super-Poly is), then they also have Soul Transition to interrupt plays, and the additional consistency with Qliphort Monolith
Use it to activate other effects of "Fire King monsters or come up with your own combo strategies with other FIRE monsters
So, first, let's have everyone look at the terrifyingly weak effect of 'Numeron Chaos Ritual'
7 Thunder Dragon Due to the banning of Thunder Dragon Colossus in the TCG, Thunder Dragons largely fell off in the meta
5 Flamvell The Flamvell archetype isnt all that great on its own, but when its supported by the right Extra Deck Monsters, it can become a raging inferno